Plant and tuber:
Flesh colour: yellow
Skin colour: yellow
Tuber shape: round oval
Eye depth: 6,8 – shallow/middle
Foliage development: rapid, uniform emergence
Storage ability: 7,5 – very good
Yield: 46,3 t/ha (according to COBORU) – high
Dormancy period: long
Starch content: 19,5 % (according to COBORU)
Starch yield: 9,0 t/ha
Length of the vegetation period: 102 days
Resistances:
PCN: Ro1, Ro3, Ro4 – resistant
Synchytrium endobioticum: 1(D1), 2(G1), 6(01), 8(F1), 18(T1), 2(CH1), M1 – resistant
Common scab: 6,0 – medium
Mechanical damage: 7,0 – high
Foliage blight: 5,0 – medium
Tuber blight: 4,0 – medium
Potato virus Y (PVY): 9,0 – resistant, immune
Metribuzin sensitivity: slightly sensitive
Site requirements:
Kuba has middle demands to soil quality. It can be cultivated on lighter as well as on more fertile soils. To use the full yield potential of the variety, an adequate supply of water is needed. Under optimal water conditions during the growing season and in the absence of water stress, Kuba accumulates much more starch than the indicated average value, i.e. even 22%. It is recommended to reduce the planting density on sandy soils to reduce a competition between plants in the canopy.
